The Experimental Evaluation of the EGNOS Safety-of-Life Services for Railway Signalling
The Experimental Evaluation of the EGNOS Safety-of-Life Services for Railway Signalling
复制标题
EGNOS 铁路信号生命安全服务的实验评估
DOI：
--
复制
发表时间：
2010
期刊：
影响因子：
--
通讯作者：
H. Mocek
中科院分区：
文献类型：
--
作者：
A. Filip;L. Bažant;H. Mocek
本文关于欧洲对地静止导航覆盖服务（EGNOS）铁路信号生命安全（SoL）服务的实验评估论文摘自2010年在中国北京举行的第十二届铁路和其他交通系统计算机系统设计与运行国际会议的论文集。作者重点研究了EGNOS精密进近（PA）和非精密进近（NPA）导航模式，这两种导航模式主要根据具体的航空要求进行设计。使用两种基本研究方法：一种最近开发的方法，用于描述铁路可靠性属性方面的全球导航卫星系统（GNSS）质量测量；以及带有 SoL 接收器的可运行 EGNOS 系统。作者的结论是，尽管没有一种导航模式是为铁路需求而设计的，但他们的研究发现，EGNOS NPA 导航模式比 PA 模式更适合陆地安全相关应用。这是因为 NPA 的横向诚信风险分配和以 1 小时为基础的诚信风险定义。作者呼吁在故障模式、故障率、可靠性和可用性方面进一步确定 EGNOS 可靠性属性。
This paper on the experimental evaluation of the European Geostationary Navigation Overlay Service (EGNOS) safety-of-life (SoL) services for railway signaling is from the proceedings of the 12th International Conference on Computer System Design and Operation in Railways and Other Transit Systems, held in Beijing, China, in 2010. The authors focus on the EGNOS Precision Approach (PA) and Non-precision Approach (NPA) navigation modes, which were mainly designed according to the specific aeronautical requirements. Two basic research approaches are used: a recently-developed methodology for the description of the Global Navigation Satellite System (GNSS) quality measures in terms of railway dependability attributes; and an operational EGNOS system with SoL receivers. The authors conclude that, in spite of the fact that none of the navigation modes were designed for railway needs, their research found that the EGNOS NPA navigation mode is more feasible for land safety-related applications than the PA mode. This is because of the NPA’s horizontal integrity risk allocation and the integrity risk definition on a 1-hour basis. The authors call for additional determination of the EGNOS dependability attributes in terms of failure modes, failure rates, reliability, and availability.